To find all the divisors of the number 174,825:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 174,825:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
174,825 = 33 × 52 × 7 × 37
174,825 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (3 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 4 × 3 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 174,825
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
3
prime factor =
5
prime factor =
7
composite factor = 3
2 =
9
composite factor = 3 × 5 =
15
composite factor = 3 × 7 =
21
composite factor = 5
2 =
25
composite factor = 3
3 =
27
composite factor = 5 × 7 =
35
prime factor =
37
composite factor = 3
2 × 5 =
45
composite factor = 3
2 × 7 =
63
composite factor = 3 × 5
2 =
75
composite factor = 3 × 5 × 7 =
105
composite factor = 3 × 37 =
111
composite factor = 3
3 × 5 =
135
composite factor = 5
2 × 7 =
175
composite factor = 5 × 37 =
185
composite factor = 3
3 × 7 =
189
composite factor = 3
2 × 5
2 =
225
composite factor = 7 × 37 =
259
composite factor = 3
2 × 5 × 7 =
315
composite factor = 3
2 × 37 =
333
This list continues below...
... This list continues from above
composite factor = 3 × 5
2 × 7 =
525
composite factor = 3 × 5 × 37 =
555
composite factor = 3
3 × 5
2 =
675
composite factor = 3 × 7 × 37 =
777
composite factor = 5
2 × 37 =
925
composite factor = 3
3 × 5 × 7 =
945
composite factor = 3
3 × 37 =
999
composite factor = 5 × 7 × 37 =
1,295
composite factor = 3
2 × 5
2 × 7 =
1,575
composite factor = 3
2 × 5 × 37 =
1,665
composite factor = 3
2 × 7 × 37 =
2,331
composite factor = 3 × 5
2 × 37 =
2,775
composite factor = 3 × 5 × 7 × 37 =
3,885
composite factor = 3
3 × 5
2 × 7 =
4,725
composite factor = 3
3 × 5 × 37 =
4,995
composite factor = 5
2 × 7 × 37 =
6,475
composite factor = 3
3 × 7 × 37 =
6,993
composite factor = 3
2 × 5
2 × 37 =
8,325
composite factor = 3
2 × 5 × 7 × 37 =
11,655
composite factor = 3 × 5
2 × 7 × 37 =
19,425
composite factor = 3
3 × 5
2 × 37 =
24,975
composite factor = 3
3 × 5 × 7 × 37 =
34,965
composite factor = 3
2 × 5
2 × 7 × 37 =
58,275
composite factor = 3
3 × 5
2 × 7 × 37 =
174,825
48 factors (divisors)
What times what is 174,825?
What number multiplied by what number equals 174,825?
All the combinations of any two natural numbers whose product equals 174,825.
1 × 174,825 = 174,825
3 × 58,275 = 174,825
5 × 34,965 = 174,825
7 × 24,975 = 174,825
9 × 19,425 = 174,825
15 × 11,655 = 174,825
21 × 8,325 = 174,825
25 × 6,993 = 174,825
27 × 6,475 = 174,825
35 × 4,995 = 174,825
37 × 4,725 = 174,825
45 × 3,885 = 174,825
63 × 2,775 = 174,825
75 × 2,331 = 174,825
105 × 1,665 = 174,825
111 × 1,575 = 174,825
135 × 1,295 = 174,825
175 × 999 = 174,825
185 × 945 = 174,825
189 × 925 = 174,825
225 × 777 = 174,825
259 × 675 = 174,825
315 × 555 = 174,825
333 × 525 = 174,825
24 unique multiplications The final answer:
(scroll down)